Gore Running Wear Magnitude Active Shell Lady Jacket 100% NYLON, WINDSTOPPERMEMBRANE, INSERT: 95% Polyamide, 5% Elasthan, MESH -1: 93% NYLON, 7% ELASTANE, MESH -2: 100% NYLON, LINING: 100% POLYESTER Imported Possibly the lightest Active Shell on the market Highly functional material mix Extremely light mesh lining Mesh insert in back for optimum ventilation two-layer WINDSTOPPER Active Shell with an airy mesh back for the perfect symbiosis of protection and comfort